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         switch (cat) {
  85         case IEEE80211_ACTION_CAT_BA:
  86                 if (act >= NELEM(ba_send_action))
  87                         break;
  88                 ba_send_action[act] = f;
  89                 return 0;
  90         case IEEE80211_ACTION_CAT_HT:
  91                 if (act >= NELEM(ht_send_action))
  92                         break;
  93                 ht_send_action[act] = f;
  94                 return 0;
  95         case IEEE80211_ACTION_CAT_MESHPEERING:
  96                 if (act >= NELEM(meshpl_send_action))
  97                         break;
  98                 meshpl_send_action[act] = f;
  99                 return 0;
 100         case IEEE80211_ACTION_CAT_MESHLMETRIC:
 101                 if (act >= NELEM(meshlm_send_action))
 102                         break;
 103                 meshlm_send_action[act] = f;
 104                 return 0;
 105         case IEEE80211_ACTION_CAT_MESHPATH:
 106                 if (act >= NELEM(hwmp_send_action))
 107                         break;
 108                 hwmp_send_action[act] = f;
 109                 return 0;
 110         case IEEE80211_ACTION_CAT_VENDOR:
 111                 if (act >= NELEM(vendor_send_action))
 112                         break;
 113                 vendor_send_action[act] = f;
 114                 return 0;
 115         }
 116         return EINVAL;
 117 }
 118
 119 void
 120 ieee80211_send_action_unregister(int cat, int act)
 121 {
 122         ieee80211_send_action_register(cat, act, send_inval);
 123 }
 124
 125 int
 126 ieee80211_send_action(struct ieee80211_node *ni, int cat, int act, void *sa)
 127 {
 128         ieee80211_send_action_func *f = send_inval;
 129
 130         switch (cat) {
 131         case IEEE80211_ACTION_CAT_BA:
 132                 if (act < NELEM(ba_send_action))
 133                         f = ba_send_action[act];
 134                 break;
 135         case IEEE80211_ACTION_CAT_HT:
 136                 if (act < NELEM(ht_send_action))
 137                         f = ht_send_action[act];
 138                 break;
 139         case IEEE80211_ACTION_CAT_MESHPEERING:
 140                 if (act < NELEM(meshpl_send_action))
 141                         f = meshpl_send_action[act];
 142                 break;
 143         case IEEE80211_ACTION_CAT_MESHLMETRIC:
 144                 if (act < NELEM(meshlm_send_action))
 145                         f = meshlm_send_action[act];
 146                 break;
 147         case IEEE80211_ACTION_CAT_MESHPATH:
 148                 if (act < NELEM(hwmp_send_action))
 149                         f = hwmp_send_action[act];
 150                 break;
 151         case IEEE80211_ACTION_CAT_VENDOR:
 152                 if (act < NELEM(vendor_send_action))
 153                         f = vendor_send_action[act];
 154                 break;
 155         }
 156         return f(ni, cat, act, sa);
 157 }
 158
 159 static int
 160 recv_inval(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
 161         const uint8_t *frm, const uint8_t *efrm)
 162 {
 163         return EINVAL;
 164 }
 165
 166 static ieee80211_recv_action_func *ba_recv_action[8] = {
 167         recv_inval, recv_inval, recv_inval, recv_inval,
 168         recv_inval, recv_inval, recv_inval, recv_inval,
 169 };
 170 static ieee80211_recv_action_func *ht_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 *meshpl_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 *meshlm_recv_action[4] = {
 179         recv_inval, recv_inval, recv_inval, recv_inval,
 180 };
 181 static ieee80211_recv_action_func *hwmp_recv_action[8] = {
 182         recv_inval, recv_inval, recv_inval, recv_inval,
 183         recv_inval, recv_inval, recv_inval, recv_inval,
 184 };
 185 static ieee80211_recv_action_func *vendor_recv_action[8] = {
 186         recv_inval, recv_inval, recv_inval, recv_inval,
 187         recv_inval, recv_inval, recv_inval, recv_inval,
 188 };
 189
 190 int
 191 ieee80211_recv_action_register(int cat, int act, ieee80211_recv_action_func *f)
 192 {
 193         switch (cat) {
 194         case IEEE80211_ACTION_CAT_BA:
 195                 if (act >= NELEM(ba_recv_action))
 196                         break;
 197                 ba_recv_action[act] = f;
 198                 return 0;
 199         case IEEE80211_ACTION_CAT_HT:
 200                 if (act >= NELEM(ht_recv_action))
 201                         break;
 202                 ht_recv_action[act] = f;
 203                 return 0;
 204         case IEEE80211_ACTION_CAT_MESHPEERING:
 205                 if (act >= NELEM(meshpl_recv_action))
 206                         break;
 207                 meshpl_recv_action[act] = f;
 208                 return 0;
 209         case IEEE80211_ACTION_CAT_MESHLMETRIC:
 210                 if (act >= NELEM(meshlm_recv_action))
 211                         break;
 212                 meshlm_recv_action[act] = f;
 213                 return 0;
 214         case IEEE80211_ACTION_CAT_MESHPATH:
 215                 if (act >= NELEM(hwmp_recv_action))
 216                         break;
 217                 hwmp_recv_action[act] = f;
 218                 return 0;
 219         case IEEE80211_ACTION_CAT_VENDOR:
 220                 if (act >= NELEM(vendor_recv_action))
 221                         break;
 222                 vendor_recv_action[act] = f;
 223                 return 0;
 224         }
 225         return EINVAL;
 226 }
 227
 228 void
 229 ieee80211_recv_action_unregister(int cat, int act)
 230 {
 231         ieee80211_recv_action_register(cat, act, recv_inval);
 232 }
 233
 234 int
 235 ieee80211_recv_action(struct ieee80211_node *ni,
 236         const struct ieee80211_frame *wh,
 237         const uint8_t *frm, const uint8_t *efrm)
 238 {
 239         ieee80211_recv_action_func *f = recv_inval;
 240         const struct ieee80211_action *ia =
 241             (const struct ieee80211_action *) frm;
 242
 243         switch (ia->ia_category) {
 244         case IEEE80211_ACTION_CAT_BA:
 245                 if (ia->ia_action < NELEM(ba_recv_action))
 246                         f = ba_recv_action[ia->ia_action];
 247                 break;
 248         case IEEE80211_ACTION_CAT_HT:
 249                 if (ia->ia_action < NELEM(ht_recv_action))
 250                         f = ht_recv_action[ia->ia_action];
 251                 break;
 252         case IEEE80211_ACTION_CAT_MESHPEERING:
 253                 if (ia->ia_action < NELEM(meshpl_recv_action))
 254                         f = meshpl_recv_action[ia->ia_action];
 255                 break;
 256         case IEEE80211_ACTION_CAT_MESHLMETRIC:
 257                 if (ia->ia_action < NELEM(meshlm_recv_action))
 258                         f = meshlm_recv_action[ia->ia_action];
 259                 break;
 260         case IEEE80211_ACTION_CAT_MESHPATH:
 261                 if (ia->ia_action < NELEM(hwmp_recv_action))
 262                         f = hwmp_recv_action[ia->ia_action];
 263                 break;
 264         case IEEE80211_ACTION_CAT_VENDOR:
 265                 if (ia->ia_action < NELEM(vendor_recv_action))
 266                         f = vendor_recv_action[ia->ia_action];
 267                 break;
 268         }
 269         return f(ni, wh, frm, efrm);
 270 }