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 } 279