1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2009 Sam Leffler, Errno Consulting
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 #ifdef __FreeBSD__
30 __FBSDID("$FreeBSD$");
31 #endif
32
33 /*
34 * IEEE 802.11 send/recv action frame support.
35 */
36
37 #include "opt_inet.h"
38 #include "opt_wlan.h"
39
40 #include <sys/param.h>
41 #include <sys/kernel.h>
42 #include <sys/malloc.h>
43 #include <sys/systm.h>
44
45 #include <sys/socket.h>
46
47 #include <net/if.h>
48 #include <net/if_var.h>
49 #include <net/if_media.h>
50 #include <net/ethernet.h>
51
52 #include <net80211/ieee80211_var.h>
53 #include <net80211/ieee80211_action.h>
54 #include <net80211/ieee80211_mesh.h>
55
56 static int
57 send_inval(struct ieee80211_node *ni, int cat, int act, void *sa)
58 {
59 return EINVAL;
60 }
61
62 static ieee80211_send_action_func *ba_send_action[8] = {
63 send_inval, send_inval, send_inval, send_inval,
64 send_inval, send_inval, send_inval, send_inval,
65 };
66 static ieee80211_send_action_func *ht_send_action[8] = {
67 send_inval, send_inval, send_inval, send_inval,
68 send_inval, send_inval, send_inval, send_inval,
69 };
70 static ieee80211_send_action_func *meshpl_send_action[8] = {
71 send_inval, send_inval, send_inval, send_inval,
72 send_inval, send_inval, send_inval, send_inval,
73 };
74 static ieee80211_send_action_func *meshaction_send_action[12] = {
75 send_inval, send_inval, send_inval, send_inval,
76 send_inval, send_inval, send_inval, send_inval,
77 send_inval, send_inval, send_inval, send_inval,
78 };
79 static ieee80211_send_action_func *vendor_send_action[8] = {
80 send_inval, send_inval, send_inval, send_inval,
81 send_inval, send_inval, send_inval, send_inval,
82 };
83
84 static ieee80211_send_action_func *vht_send_action[3] = {
85 send_inval, send_inval, send_inval,
86 };
87
88 int
89 ieee80211_send_action_register(int cat, int act, ieee80211_send_action_func *f)
90 {
91 switch (cat) {
92 case IEEE80211_ACTION_CAT_BA:
93 if (act >= nitems(ba_send_action))
94 break;
95 ba_send_action[act] = f;
96 return 0;
97 case IEEE80211_ACTION_CAT_HT:
98 if (act >= nitems(ht_send_action))
99 break;
100 ht_send_action[act] = f;
101 return 0;
102 case IEEE80211_ACTION_CAT_SELF_PROT:
103 if (act >= nitems(meshpl_send_action))
104 break;
105 meshpl_send_action[act] = f;
106 return 0;
107 case IEEE80211_ACTION_CAT_MESH:
108 if (act >= nitems(meshaction_send_action))
109 break;
110 meshaction_send_action[act] = f;
111 return 0;
112 case IEEE80211_ACTION_CAT_VENDOR:
113 if (act >= nitems(vendor_send_action))
114 break;
115 vendor_send_action[act] = f;
116 return 0;
117 case IEEE80211_ACTION_CAT_VHT:
118 if (act >= nitems(vht_send_action))
119 break;
120 vht_send_action[act] = f;
121 return 0;
122 }
123 return EINVAL;
124 }
125
126 void
127 ieee80211_send_action_unregister(int cat, int act)
128 {
129 ieee80211_send_action_register(cat, act, send_inval);
130 }
131
132 int
133 ieee80211_send_action(struct ieee80211_node *ni, int cat, int act, void *sa)
134 {
135 ieee80211_send_action_func *f = send_inval;
136
137 switch (cat) {
138 case IEEE80211_ACTION_CAT_BA:
139 if (act < nitems(ba_send_action))
140 f = ba_send_action[act];
141 break;
142 case IEEE80211_ACTION_CAT_HT:
143 if (act < nitems(ht_send_action))
144 f = ht_send_action[act];
145 break;
146 case IEEE80211_ACTION_CAT_SELF_PROT:
147 if (act < nitems(meshpl_send_action))
148 f = meshpl_send_action[act];
149 break;
150 case IEEE80211_ACTION_CAT_MESH:
151 if (act < nitems(meshaction_send_action))
152 f = meshaction_send_action[act];
153 break;
154 case IEEE80211_ACTION_CAT_VENDOR:
155 if (act < nitems(vendor_send_action))
156 f = vendor_send_action[act];
157 break;
158 case IEEE80211_ACTION_CAT_VHT:
159 if (act < nitems(vht_send_action))
160 f = vht_send_action[act];
161 break;
162 }
163 return f(ni, cat, act, sa);
164 }
165
166 static int
167 recv_inval(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
168 const uint8_t *frm, const uint8_t *efrm)
169 {
170 return EINVAL;
171 }
172
173 static ieee80211_recv_action_func *ba_recv_action[8] = {
174 recv_inval, recv_inval, recv_inval, recv_inval,
175 recv_inval, recv_inval, recv_inval, recv_inval,
176 };
177 static ieee80211_recv_action_func *ht_recv_action[8] = {
178 recv_inval, recv_inval, recv_inval, recv_inval,
179 recv_inval, recv_inval, recv_inval, recv_inval,
180 };
181 static ieee80211_recv_action_func *meshpl_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 *meshaction_recv_action[12] = {
186 recv_inval, recv_inval, recv_inval, recv_inval,
187 recv_inval, recv_inval, recv_inval, recv_inval,
188 recv_inval, recv_inval, recv_inval, recv_inval,
189 };
190 static ieee80211_recv_action_func *vendor_recv_action[8] = {
191 recv_inval, recv_inval, recv_inval, recv_inval,
192 recv_inval, recv_inval, recv_inval, recv_inval,
193 };
194
195 static ieee80211_recv_action_func *vht_recv_action[3] = {
196 recv_inval, recv_inval, recv_inval
197 };
198
199 int
200 ieee80211_recv_action_register(int cat, int act, ieee80211_recv_action_func *f)
201 {
202 switch (cat) {
203 case IEEE80211_ACTION_CAT_BA:
204 if (act >= nitems(ba_recv_action))
205 break;
206 ba_recv_action[act] = f;
207 return 0;
208 case IEEE80211_ACTION_CAT_HT:
209 if (act >= nitems(ht_recv_action))
210 break;
211 ht_recv_action[act] = f;
212 return 0;
213 case IEEE80211_ACTION_CAT_SELF_PROT:
214 if (act >= nitems(meshpl_recv_action))
215 break;
216 meshpl_recv_action[act] = f;
217 return 0;
218 case IEEE80211_ACTION_CAT_MESH:
219 if (act >= nitems(meshaction_recv_action))
220 break;
221 meshaction_recv_action[act] = f;
222 return 0;
223 case IEEE80211_ACTION_CAT_VENDOR:
224 if (act >= nitems(vendor_recv_action))
225 break;
226 vendor_recv_action[act] = f;
227 return 0;
228 case IEEE80211_ACTION_CAT_VHT:
229 if (act >= nitems(vht_recv_action))
230 break;
231 vht_recv_action[act] = f;
232 return 0;
233 }
234 return EINVAL;
235 }
236
237 void
238 ieee80211_recv_action_unregister(int cat, int act)
239 {
240 ieee80211_recv_action_register(cat, act, recv_inval);
241 }
242
243 int
244 ieee80211_recv_action(struct ieee80211_node *ni,
245 const struct ieee80211_frame *wh,
246 const uint8_t *frm, const uint8_t *efrm)
247 {
248 ieee80211_recv_action_func *f = recv_inval;
249 struct ieee80211vap *vap = ni->ni_vap;
250 const struct ieee80211_action *ia =
251 (const struct ieee80211_action *) frm;
252
253 switch (ia->ia_category) {
254 case IEEE80211_ACTION_CAT_BA:
255 if (ia->ia_action < nitems(ba_recv_action))
256 f = ba_recv_action[ia->ia_action];
257 break;
258 case IEEE80211_ACTION_CAT_HT:
259 if (ia->ia_action < nitems(ht_recv_action))
260 f = ht_recv_action[ia->ia_action];
261 break;
262 case IEEE80211_ACTION_CAT_SELF_PROT:
263 if (ia->ia_action < nitems(meshpl_recv_action))
264 f = meshpl_recv_action[ia->ia_action];
265 break;
266 case IEEE80211_ACTION_CAT_MESH:
267 if (ni == vap->iv_bss ||
268 ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) {
269 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH,
270 ni->ni_macaddr, NULL,
271 "peer link not yet established (%d), cat %s act %u",
272 ni->ni_mlstate, "mesh action", ia->ia_action);
273 vap->iv_stats.is_mesh_nolink++;
274 break;
275 }
276 if (ia->ia_action < nitems(meshaction_recv_action))
277 f = meshaction_recv_action[ia->ia_action];
278 break;
279 case IEEE80211_ACTION_CAT_VENDOR:
280 if (ia->ia_action < nitems(vendor_recv_action))
281 f = vendor_recv_action[ia->ia_action];
282 break;
283 case IEEE80211_ACTION_CAT_VHT:
284 if (ia->ia_action < nitems(vht_recv_action))
285 f = vht_recv_action[ia->ia_action];
286 break;
287 }
288 return f(ni, wh, frm, efrm);
289 }
Cache object: 8ca71ef40473bb597f1abb32d31a8fc4
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