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 } 271