sys/netproto/802_11/wlan/ieee80211_action.c

   1 /*-
   2  * Copyright (c) 2009 Sam Leffler, Errno Consulting
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  *
  25  * $FreeBSD: head/sys/net80211/ieee80211_action.c 199186 2009-11-11 14:58:48Z antoine $
  26  * $DragonFly$
  27  */
  28
  29 /*
  30  * IEEE 802.11 send/recv action frame support.
  31  */
  32
  33 #include "opt_inet.h"
  34 #include "opt_wlan.h"
  35
  36 #include <sys/param.h>
  37 #include <sys/kernel.h>
  38 #include <sys/systm.h>
  39
  40 #include <sys/socket.h>
  41
  42 #include <net/if.h>
  43 #include <net/if_media.h>
  44 #include <net/ethernet.h>
  45 #include <net/route.h>
  46
  47 #include <netproto/802_11/ieee80211_var.h>
  48 #include <netproto/802_11/ieee80211_action.h>
  49 #include <netproto/802_11/ieee80211_mesh.h>
  50
  51 static int
  52 send_inval(struct ieee80211_node *ni, int cat, int act, void *sa)
  53 {
  54         return EINVAL;
  55 }
  56
  57 static ieee80211_send_action_func *ba_send_action[8] = {
  58         send_inval, send_inval, send_inval, send_inval,
  59         send_inval, send_inval, send_inval, send_inval,
  60 };
  61 static ieee80211_send_action_func *ht_send_action[8] = {
  62         send_inval, send_inval, send_inval, send_inval,
  63         send_inval, send_inval, send_inval, send_inval,
  64 };
  65 static ieee80211_send_action_func *meshpl_send_action[8] = {
  66         send_inval, send_inval, send_inval, send_inval,
  67         send_inval, send_inval, send_inval, send_inval,
  68 };
  69 static ieee80211_send_action_func *meshlm_send_action[4] = {
  70         send_inval, send_inval, send_inval, send_inval,
  71 };
  72 static ieee80211_send_action_func *hwmp_send_action[8] = {
  73         send_inval, send_inval, send_inval, send_inval,
  74         send_inval, send_inval, send_inval, send_inval,
  75 };
  76 static ieee80211_send_action_func *vendor_send_action[8] = {
  77         send_inval, send_inval, send_inval, send_inval,
  78         send_inval, send_inval, send_inval, send_inval,
  79 };
  80
  81 int
  82 ieee80211_send_action_register(int cat, int act, ieee80211_send_action_func *f)
  83 {
  84 #define N(a)    (sizeof(a) / sizeof(a[0]))
  85         switch (cat) {
  86         case IEEE80211_ACTION_CAT_BA:
  87                 if (act >= N(ba_send_action))
  88                         break;
  89                 ba_send_action[act] = f;
  90                 return 0;
  91         case IEEE80211_ACTION_CAT_HT:
  92                 if (act >= N(ht_send_action))
  93                         break;
  94                 ht_send_action[act] = f;
  95                 return 0;
  96         case IEEE80211_ACTION_CAT_MESHPEERING:
  97                 if (act >= N(meshpl_send_action))
  98                         break;
  99                 meshpl_send_action[act] = f;
 100                 return 0;
 101         case IEEE80211_ACTION_CAT_MESHLMETRIC:
 102                 if (act >= N(meshlm_send_action))
 103                         break;
 104                 meshlm_send_action[act] = f;
 105                 return 0;
 106         case IEEE80211_ACTION_CAT_MESHPATH:
 107                 if (act >= N(hwmp_send_action))
 108                         break;
 109                 hwmp_send_action[act] = f;
 110                 return 0;
 111         case IEEE80211_ACTION_CAT_VENDOR:
 112                 if (act >= N(vendor_send_action))
 113                         break;
 114                 vendor_send_action[act] = f;
 115                 return 0;
 116         }
 117         return EINVAL;
 118 #undef N
 119 }
 120
 121 void
 122 ieee80211_send_action_unregister(int cat, int act)
 123 {
 124         ieee80211_send_action_register(cat, act, send_inval);
 125 }
 126
 127 int
 128 ieee80211_send_action(struct ieee80211_node *ni, int cat, int act, void *sa)
 129 {
 130 #define N(a)    (sizeof(a) / sizeof(a[0]))
 131         ieee80211_send_action_func *f = send_inval;
 132
 133         switch (cat) {
 134         case IEEE80211_ACTION_CAT_BA:
 135                 if (act < N(ba_send_action))
 136                         f = ba_send_action[act];
 137                 break;
 138         case IEEE80211_ACTION_CAT_HT:
 139                 if (act < N(ht_send_action))
 140                         f = ht_send_action[act];
 141                 break;
 142         case IEEE80211_ACTION_CAT_MESHPEERING:
 143                 if (act < N(meshpl_send_action))
 144                         f = meshpl_send_action[act];
 145                 break;
 146         case IEEE80211_ACTION_CAT_MESHLMETRIC:
 147                 if (act < N(meshlm_send_action))
 148                         f = meshlm_send_action[act];
 149                 break;
 150         case IEEE80211_ACTION_CAT_MESHPATH:
 151                 if (act < N(hwmp_send_action))
 152                         f = hwmp_send_action[act];
 153                 break;
 154         case IEEE80211_ACTION_CAT_VENDOR:
 155                 if (act < N(vendor_send_action))
 156                         f = vendor_send_action[act];
 157                 break;
 158         }
 159         return f(ni, cat, act, sa);
 160 #undef N
 161 }
 162
 163 static int
 164 recv_inval(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
 165         const uint8_t *frm, const uint8_t *efrm)
 166 {
 167         return EINVAL;
 168 }
 169
 170 static ieee80211_recv_action_func *ba_recv_action[8] = {
 171         recv_inval, recv_inval, recv_inval, recv_inval,
 172         recv_inval, recv_inval, recv_inval, recv_inval,
 173 };
 174 static ieee80211_recv_action_func *ht_recv_action[8] = {
 175         recv_inval, recv_inval, recv_inval, recv_inval,
 176         recv_inval, recv_inval, recv_inval, recv_inval,
 177 };
 178 static ieee80211_recv_action_func *meshpl_recv_action[8] = {
 179         recv_inval, recv_inval, recv_inval, recv_inval,
 180         recv_inval, recv_inval, recv_inval, recv_inval,
 181 };
 182 static ieee80211_recv_action_func *meshlm_recv_action[4] = {
 183         recv_inval, recv_inval, recv_inval, recv_inval,
 184 };
 185 static ieee80211_recv_action_func *hwmp_recv_action[8] = {
 186         recv_inval, recv_inval, recv_inval, recv_inval,
 187         recv_inval, recv_inval, recv_inval, recv_inval,
 188 };
 189 static ieee80211_recv_action_func *vendor_recv_action[8] = {
 190         recv_inval, recv_inval, recv_inval, recv_inval,
 191         recv_inval, recv_inval, recv_inval, recv_inval,
 192 };
 193
 194 int
 195 ieee80211_recv_action_register(int cat, int act, ieee80211_recv_action_func *f)
 196 {
 197 #define N(a)    (sizeof(a) / sizeof(a[0]))
 198         switch (cat) {
 199         case IEEE80211_ACTION_CAT_BA:
 200                 if (act >= N(ba_recv_action))
 201                         break;
 202                 ba_recv_action[act] = f;
 203                 return 0;
 204         case IEEE80211_ACTION_CAT_HT:
 205                 if (act >= N(ht_recv_action))
 206                         break;
 207                 ht_recv_action[act] = f;
 208                 return 0;
 209         case IEEE80211_ACTION_CAT_MESHPEERING:
 210                 if (act >= N(meshpl_recv_action))
 211                         break;
 212                 meshpl_recv_action[act] = f;
 213                 return 0;
 214         case IEEE80211_ACTION_CAT_MESHLMETRIC:
 215                 if (act >= N(meshlm_recv_action))
 216                         break;
 217                 meshlm_recv_action[act] = f;
 218                 return 0;
 219         case IEEE80211_ACTION_CAT_MESHPATH:
 220                 if (act >= N(hwmp_recv_action))
 221                         break;
 222                 hwmp_recv_action[act] = f;
 223                 return 0;
 224         case IEEE80211_ACTION_CAT_VENDOR:
 225                 if (act >= N(vendor_recv_action))
 226                         break;
 227                 vendor_recv_action[act] = f;
 228                 return 0;
 229         }
 230         return EINVAL;
 231 #undef N
 232 }
 233
 234 void
 235 ieee80211_recv_action_unregister(int cat, int act)
 236 {
 237         ieee80211_recv_action_register(cat, act, recv_inval);
 238 }
 239
 240 int
 241 ieee80211_recv_action(struct ieee80211_node *ni,
 242         const struct ieee80211_frame *wh,
 243         const uint8_t *frm, const uint8_t *efrm)
 244 {
 245 #define N(a)    (sizeof(a) / sizeof(a[0]))
 246         ieee80211_recv_action_func *f = recv_inval;
 247         const struct ieee80211_action *ia =
 248             (const struct ieee80211_action *) frm;
 249
 250         switch (ia->ia_category) {
 251         case IEEE80211_ACTION_CAT_BA:
 252                 if (ia->ia_action < N(ba_recv_action))
 253                         f = ba_recv_action[ia->ia_action];
 254                 break;
 255         case IEEE80211_ACTION_CAT_HT:
 256                 if (ia->ia_action < N(ht_recv_action))
 257                         f = ht_recv_action[ia->ia_action];
 258                 break;
 259         case IEEE80211_ACTION_CAT_MESHPEERING:
 260                 if (ia->ia_action < N(meshpl_recv_action))
 261                         f = meshpl_recv_action[ia->ia_action];
 262                 break;
 263         case IEEE80211_ACTION_CAT_MESHLMETRIC:
 264                 if (ia->ia_action < N(meshlm_recv_action))
 265                         f = meshlm_recv_action[ia->ia_action];
 266                 break;
 267         case IEEE80211_ACTION_CAT_MESHPATH:
 268                 if (ia->ia_action < N(hwmp_recv_action))
 269                         f = hwmp_recv_action[ia->ia_action];
 270                 break;
 271         case IEEE80211_ACTION_CAT_VENDOR:
 272                 if (ia->ia_action < N(vendor_recv_action))
 273                         f = vendor_recv_action[ia->ia_action];
 274                 break;
 275         }
 276         return f(ni, wh, frm, efrm);
 277 #undef N
 278 }