ieee80211_proto.h revision 1.5.2.8
1 1.5.2.8 christos /* $NetBSD: ieee80211_proto.h,v 1.5.2.8 2005/12/11 10:29:22 christos Exp $ */ 2 1.5.2.2 skrll /*- 3 1.5.2.2 skrll * Copyright (c) 2001 Atsushi Onoe 4 1.5.2.7 skrll * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 5 1.5.2.2 skrll * All rights reserved. 6 1.5.2.2 skrll * 7 1.5.2.2 skrll * Redistribution and use in source and binary forms, with or without 8 1.5.2.2 skrll * modification, are permitted provided that the following conditions 9 1.5.2.2 skrll * are met: 10 1.5.2.2 skrll * 1. Redistributions of source code must retain the above copyright 11 1.5.2.2 skrll * notice, this list of conditions and the following disclaimer. 12 1.5.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 13 1.5.2.2 skrll * notice, this list of conditions and the following disclaimer in the 14 1.5.2.2 skrll * documentation and/or other materials provided with the distribution. 15 1.5.2.2 skrll * 3. The name of the author may not be used to endorse or promote products 16 1.5.2.2 skrll * derived from this software without specific prior written permission. 17 1.5.2.2 skrll * 18 1.5.2.2 skrll * Alternatively, this software may be distributed under the terms of the 19 1.5.2.2 skrll * GNU General Public License ("GPL") version 2 as published by the Free 20 1.5.2.2 skrll * Software Foundation. 21 1.5.2.2 skrll * 22 1.5.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 1.5.2.2 skrll * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 1.5.2.2 skrll * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 1.5.2.2 skrll * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 1.5.2.2 skrll * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 1.5.2.2 skrll * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 1.5.2.2 skrll * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 1.5.2.2 skrll * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 1.5.2.2 skrll * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 1.5.2.2 skrll * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 1.5.2.2 skrll * 33 1.5.2.8 christos * $FreeBSD: src/sys/net80211/ieee80211_proto.h,v 1.16 2005/08/13 17:31:48 sam Exp $ 34 1.5.2.2 skrll */ 35 1.5.2.2 skrll #ifndef _NET80211_IEEE80211_PROTO_H_ 36 1.5.2.2 skrll #define _NET80211_IEEE80211_PROTO_H_ 37 1.5.2.2 skrll 38 1.5.2.2 skrll /* 39 1.5.2.2 skrll * 802.11 protocol implementation definitions. 40 1.5.2.2 skrll */ 41 1.5.2.2 skrll 42 1.5.2.2 skrll enum ieee80211_state { 43 1.5.2.2 skrll IEEE80211_S_INIT = 0, /* default state */ 44 1.5.2.2 skrll IEEE80211_S_SCAN = 1, /* scanning */ 45 1.5.2.2 skrll IEEE80211_S_AUTH = 2, /* try to authenticate */ 46 1.5.2.2 skrll IEEE80211_S_ASSOC = 3, /* try to assoc */ 47 1.5.2.2 skrll IEEE80211_S_RUN = 4, /* associated */ 48 1.5.2.2 skrll }; 49 1.5.2.2 skrll #define IEEE80211_S_MAX (IEEE80211_S_RUN+1) 50 1.5.2.2 skrll 51 1.5.2.2 skrll #define IEEE80211_SEND_MGMT(_ic,_ni,_type,_arg) \ 52 1.5.2.2 skrll ((*(_ic)->ic_send_mgmt)(_ic, _ni, _type, _arg)) 53 1.5.2.2 skrll 54 1.5.2.2 skrll extern const char *ieee80211_mgt_subtype_name[]; 55 1.5.2.7 skrll extern const char *ieee80211_phymode_name[]; 56 1.5.2.2 skrll 57 1.5.2.7 skrll void ieee80211_proto_attach(struct ieee80211com *); 58 1.5.2.7 skrll void ieee80211_proto_detach(struct ieee80211com *); 59 1.5.2.2 skrll 60 1.5.2.2 skrll struct ieee80211_node; 61 1.5.2.7 skrll int ieee80211_input(struct ieee80211com *, struct mbuf *, 62 1.5.2.2 skrll struct ieee80211_node *, int, u_int32_t); 63 1.5.2.8 christos int ieee80211_setup_rates(struct ieee80211_node *ni, 64 1.5.2.8 christos const u_int8_t *rates, const u_int8_t *xrates, int flags); 65 1.5.2.8 christos void ieee80211_saveie(u_int8_t **, const u_int8_t *); 66 1.5.2.7 skrll void ieee80211_recv_mgmt(struct ieee80211com *, struct mbuf *, 67 1.5.2.2 skrll struct ieee80211_node *, int, int, u_int32_t); 68 1.5.2.8 christos int ieee80211_send_nulldata(struct ieee80211_node *); 69 1.5.2.8 christos int ieee80211_send_probereq(struct ieee80211_node *ni, 70 1.5.2.8 christos const u_int8_t sa[IEEE80211_ADDR_LEN], 71 1.5.2.8 christos const u_int8_t da[IEEE80211_ADDR_LEN], 72 1.5.2.8 christos const u_int8_t bssid[IEEE80211_ADDR_LEN], 73 1.5.2.8 christos const u_int8_t *ssid, size_t ssidlen, 74 1.5.2.8 christos const void *optie, size_t optielen); 75 1.5.2.7 skrll int ieee80211_send_mgmt(struct ieee80211com *, struct ieee80211_node *, 76 1.5.2.2 skrll int, int); 77 1.5.2.7 skrll int ieee80211_classify(struct ieee80211com *, struct mbuf *, 78 1.5.2.7 skrll struct ieee80211_node *); 79 1.5.2.7 skrll struct mbuf *ieee80211_encap(struct ieee80211com *, struct mbuf *, 80 1.5.2.7 skrll struct ieee80211_node *); 81 1.5.2.7 skrll void ieee80211_pwrsave(struct ieee80211com *, struct ieee80211_node *, 82 1.5.2.2 skrll struct mbuf *); 83 1.5.2.7 skrll 84 1.5.2.7 skrll void ieee80211_reset_erp(struct ieee80211com *); 85 1.5.2.7 skrll void ieee80211_set_shortslottime(struct ieee80211com *, int onoff); 86 1.5.2.7 skrll int ieee80211_iserp_rateset(struct ieee80211com *, 87 1.5.2.7 skrll struct ieee80211_rateset *); 88 1.5.2.7 skrll void ieee80211_set11gbasicrates(struct ieee80211_rateset *, 89 1.5.2.7 skrll enum ieee80211_phymode); 90 1.5.2.7 skrll 91 1.5.2.7 skrll /* 92 1.5.2.7 skrll * Return the size of the 802.11 header for a management or data frame. 93 1.5.2.7 skrll */ 94 1.5.2.7 skrll static __inline int 95 1.5.2.7 skrll ieee80211_hdrsize(const void *data) 96 1.5.2.7 skrll { 97 1.5.2.7 skrll const struct ieee80211_frame *wh = data; 98 1.5.2.7 skrll int size = sizeof(struct ieee80211_frame); 99 1.5.2.7 skrll 100 1.5.2.7 skrll /* NB: we don't handle control frames */ 101 1.5.2.7 skrll IASSERT((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_CTL, 102 1.5.2.7 skrll ("%s: control frame", __func__)); 103 1.5.2.7 skrll if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS) 104 1.5.2.7 skrll size += IEEE80211_ADDR_LEN; 105 1.5.2.7 skrll if (IEEE80211_QOS_HAS_SEQ(wh)) 106 1.5.2.7 skrll size += sizeof(u_int16_t); 107 1.5.2.7 skrll return size; 108 1.5.2.7 skrll } 109 1.5.2.7 skrll 110 1.5.2.7 skrll /* 111 1.5.2.7 skrll * Return the size of the 802.11 header; handles any type of frame. 112 1.5.2.7 skrll */ 113 1.5.2.7 skrll static __inline int 114 1.5.2.7 skrll ieee80211_anyhdrsize(const void *data) 115 1.5.2.7 skrll { 116 1.5.2.7 skrll const struct ieee80211_frame *wh = data; 117 1.5.2.7 skrll 118 1.5.2.7 skrll if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) { 119 1.5.2.7 skrll switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) { 120 1.5.2.7 skrll case IEEE80211_FC0_SUBTYPE_CTS: 121 1.5.2.7 skrll case IEEE80211_FC0_SUBTYPE_ACK: 122 1.5.2.7 skrll return sizeof(struct ieee80211_frame_ack); 123 1.5.2.7 skrll } 124 1.5.2.7 skrll return sizeof(struct ieee80211_frame_min); 125 1.5.2.7 skrll } else 126 1.5.2.7 skrll return ieee80211_hdrsize(data); 127 1.5.2.7 skrll } 128 1.5.2.7 skrll 129 1.5.2.7 skrll /* 130 1.5.2.7 skrll * Template for an in-kernel authenticator. Authenticators 131 1.5.2.7 skrll * register with the protocol code and are typically loaded 132 1.5.2.7 skrll * as separate modules as needed. 133 1.5.2.7 skrll */ 134 1.5.2.7 skrll struct ieee80211_authenticator { 135 1.5.2.7 skrll const char *ia_name; /* printable name */ 136 1.5.2.7 skrll int (*ia_attach)(struct ieee80211com *); 137 1.5.2.7 skrll void (*ia_detach)(struct ieee80211com *); 138 1.5.2.7 skrll void (*ia_node_join)(struct ieee80211com *, 139 1.5.2.7 skrll struct ieee80211_node *); 140 1.5.2.7 skrll void (*ia_node_leave)(struct ieee80211com *, 141 1.5.2.7 skrll struct ieee80211_node *); 142 1.5.2.7 skrll }; 143 1.5.2.7 skrll void ieee80211_authenticator_register(int type, 144 1.5.2.7 skrll const struct ieee80211_authenticator *); 145 1.5.2.7 skrll void ieee80211_authenticator_unregister(int type); 146 1.5.2.7 skrll const struct ieee80211_authenticator *ieee80211_authenticator_get(int auth); 147 1.5.2.7 skrll 148 1.5.2.8 christos struct ieee80211req; 149 1.5.2.7 skrll /* 150 1.5.2.7 skrll * Template for an MAC ACL policy module. Such modules 151 1.5.2.7 skrll * register with the protocol code and are passed the sender's 152 1.5.2.7 skrll * address of each received frame for validation. 153 1.5.2.7 skrll */ 154 1.5.2.7 skrll struct ieee80211_aclator { 155 1.5.2.7 skrll const char *iac_name; /* printable name */ 156 1.5.2.7 skrll int (*iac_attach)(struct ieee80211com *); 157 1.5.2.7 skrll void (*iac_detach)(struct ieee80211com *); 158 1.5.2.7 skrll int (*iac_check)(struct ieee80211com *, 159 1.5.2.7 skrll const u_int8_t mac[IEEE80211_ADDR_LEN]); 160 1.5.2.7 skrll int (*iac_add)(struct ieee80211com *, 161 1.5.2.7 skrll const u_int8_t mac[IEEE80211_ADDR_LEN]); 162 1.5.2.7 skrll int (*iac_remove)(struct ieee80211com *, 163 1.5.2.7 skrll const u_int8_t mac[IEEE80211_ADDR_LEN]); 164 1.5.2.7 skrll int (*iac_flush)(struct ieee80211com *); 165 1.5.2.7 skrll int (*iac_setpolicy)(struct ieee80211com *, int); 166 1.5.2.7 skrll int (*iac_getpolicy)(struct ieee80211com *); 167 1.5.2.8 christos int (*iac_setioctl)(struct ieee80211com *, struct ieee80211req *); 168 1.5.2.8 christos int (*iac_getioctl)(struct ieee80211com *, struct ieee80211req *); 169 1.5.2.7 skrll }; 170 1.5.2.7 skrll void ieee80211_aclator_register(const struct ieee80211_aclator *); 171 1.5.2.7 skrll void ieee80211_aclator_unregister(const struct ieee80211_aclator *); 172 1.5.2.7 skrll const struct ieee80211_aclator *ieee80211_aclator_get(const char *name); 173 1.5.2.7 skrll 174 1.5.2.7 skrll /* flags for ieee80211_fix_rate() */ 175 1.5.2.7 skrll #define IEEE80211_F_DOSORT 0x00000001 /* sort rate list */ 176 1.5.2.7 skrll #define IEEE80211_F_DOFRATE 0x00000002 /* use fixed rate */ 177 1.5.2.7 skrll #define IEEE80211_F_DONEGO 0x00000004 /* calc negotiated rate */ 178 1.5.2.7 skrll #define IEEE80211_F_DODEL 0x00000008 /* delete ignore rate */ 179 1.5.2.8 christos int ieee80211_fix_rate(struct ieee80211_node *, int); 180 1.5.2.7 skrll 181 1.5.2.7 skrll /* 182 1.5.2.7 skrll * WME/WMM support. 183 1.5.2.7 skrll */ 184 1.5.2.7 skrll struct wmeParams { 185 1.5.2.7 skrll u_int8_t wmep_acm; 186 1.5.2.7 skrll u_int8_t wmep_aifsn; 187 1.5.2.7 skrll u_int8_t wmep_logcwmin; /* log2(cwmin) */ 188 1.5.2.7 skrll u_int8_t wmep_logcwmax; /* log2(cwmax) */ 189 1.5.2.7 skrll u_int8_t wmep_txopLimit; 190 1.5.2.7 skrll u_int8_t wmep_noackPolicy; /* 0 (ack), 1 (no ack) */ 191 1.5.2.7 skrll }; 192 1.5.2.7 skrll #define IEEE80211_TXOP_TO_US(_txop) ((_txop)<<5) 193 1.5.2.7 skrll #define IEEE80211_US_TO_TXOP(_us) ((_us)>>5) 194 1.5.2.7 skrll 195 1.5.2.7 skrll struct chanAccParams { 196 1.5.2.7 skrll u_int8_t cap_info; /* version of the current set */ 197 1.5.2.7 skrll struct wmeParams cap_wmeParams[WME_NUM_AC]; 198 1.5.2.7 skrll }; 199 1.5.2.7 skrll 200 1.5.2.7 skrll struct ieee80211_wme_state { 201 1.5.2.7 skrll u_int wme_flags; 202 1.5.2.7 skrll #define WME_F_AGGRMODE 0x00000001 /* STATUS: WME agressive mode */ 203 1.5.2.7 skrll u_int wme_hipri_traffic; /* VI/VO frames in beacon interval */ 204 1.5.2.7 skrll u_int wme_hipri_switch_thresh;/* agressive mode switch thresh */ 205 1.5.2.7 skrll u_int wme_hipri_switch_hysteresis;/* agressive mode switch hysteresis */ 206 1.5.2.7 skrll 207 1.5.2.7 skrll struct wmeParams wme_params[4]; /* from assoc resp for each AC*/ 208 1.5.2.7 skrll struct chanAccParams wme_wmeChanParams; /* WME params applied to self */ 209 1.5.2.7 skrll struct chanAccParams wme_wmeBssChanParams;/* WME params bcast to stations */ 210 1.5.2.7 skrll struct chanAccParams wme_chanParams; /* params applied to self */ 211 1.5.2.7 skrll struct chanAccParams wme_bssChanParams; /* params bcast to stations */ 212 1.5.2.7 skrll 213 1.5.2.7 skrll int (*wme_update)(struct ieee80211com *); 214 1.5.2.7 skrll }; 215 1.5.2.7 skrll 216 1.5.2.7 skrll void ieee80211_wme_initparams(struct ieee80211com *); 217 1.5.2.7 skrll void ieee80211_wme_updateparams(struct ieee80211com *); 218 1.5.2.7 skrll void ieee80211_wme_updateparams_locked(struct ieee80211com *); 219 1.5.2.7 skrll 220 1.5.2.2 skrll #define ieee80211_new_state(_ic, _nstate, _arg) \ 221 1.5.2.2 skrll (((_ic)->ic_newstate)((_ic), (_nstate), (_arg))) 222 1.5.2.7 skrll extern int ieee80211_compute_duration(struct ieee80211_frame_min *, int, 223 1.5.2.5 skrll uint32_t, int, int, struct ieee80211_duration *, 224 1.5.2.5 skrll struct ieee80211_duration *, int *, int); 225 1.5.2.7 skrll void ieee80211_print_essid(const u_int8_t *, int); 226 1.5.2.7 skrll void ieee80211_dump_pkt(const u_int8_t *, int, int, int); 227 1.5.2.2 skrll 228 1.5.2.2 skrll extern const char *ieee80211_state_name[IEEE80211_S_MAX]; 229 1.5.2.7 skrll extern const char *ieee80211_wme_acnames[]; 230 1.5.2.7 skrll 231 1.5.2.7 skrll /* 232 1.5.2.7 skrll * Beacon frames constructed by ieee80211_beacon_alloc 233 1.5.2.7 skrll * have the following structure filled in so drivers 234 1.5.2.7 skrll * can update the frame later w/ minimal overhead. 235 1.5.2.7 skrll */ 236 1.5.2.7 skrll struct ieee80211_beacon_offsets { 237 1.5.2.7 skrll u_int16_t *bo_caps; /* capabilities */ 238 1.5.2.7 skrll u_int8_t *bo_tim; /* start of atim/dtim */ 239 1.5.2.7 skrll u_int8_t *bo_wme; /* start of WME parameters */ 240 1.5.2.7 skrll u_int8_t *bo_trailer; /* start of fixed-size trailer */ 241 1.5.2.7 skrll u_int16_t bo_tim_len; /* atim/dtim length in bytes */ 242 1.5.2.7 skrll u_int16_t bo_trailer_len; /* trailer length in bytes */ 243 1.5.2.7 skrll }; 244 1.5.2.7 skrll struct mbuf *ieee80211_beacon_alloc(struct ieee80211com *, 245 1.5.2.7 skrll struct ieee80211_node *, struct ieee80211_beacon_offsets *); 246 1.5.2.7 skrll int ieee80211_beacon_update(struct ieee80211com *, 247 1.5.2.7 skrll struct ieee80211_node *, struct ieee80211_beacon_offsets *, 248 1.5.2.7 skrll struct mbuf *, int broadcast); 249 1.5.2.7 skrll 250 1.5.2.7 skrll /* 251 1.5.2.7 skrll * Notification methods called from the 802.11 state machine. 252 1.5.2.7 skrll * Note that while these are defined here, their implementation 253 1.5.2.7 skrll * is OS-specific. 254 1.5.2.7 skrll */ 255 1.5.2.7 skrll void ieee80211_notify_node_join(struct ieee80211com *, 256 1.5.2.7 skrll struct ieee80211_node *, int newassoc); 257 1.5.2.7 skrll void ieee80211_notify_node_leave(struct ieee80211com *, 258 1.5.2.7 skrll struct ieee80211_node *); 259 1.5.2.7 skrll void ieee80211_notify_scan_done(struct ieee80211com *); 260 1.5.2.8 christos #endif /* !_NET80211_IEEE80211_PROTO_H_ */ 261
Indexes created Fri Oct 03 02:09:57 GMT 2025